What question did this study set out to answer?

This research aims to investigate the coordination behavior of arylimines with different metal halides.

April 3, 2026Russian Journal of Coordination Chemistry0 citations

Coordination Complexes of Arylimine Derivatives of Aceanthrylene-1,2-dione

GMG. V. MarkinG.A. Razuvaev Institute of Organometallic Chemistry RRR. V. RumyantsevG.A. Razuvaev Institute of Organometallic Chemistry GZG. Yu. ZhigulinG.A. Razuvaev Institute of Organometallic Chemistry

Key Points

This research aims to investigate the coordination behavior of arylimines with different metal halides.
Synthesized coordination complexes with bismuth bromide, iron(II) bromide, and zinc chloride.
Characterized the structural dimeric nature of the compounds due to bridging halogen atoms.
Performed DFT calculations to assess energy of metal-ligand interactions.
Dimeric structures confirmed with bridging halogen atoms in the complexes.
Fe showed the highest metal-ligand interaction energy, while Bi exhibited the lowest.
ZnCl2 coordination effects observed at the 7 and 8 positions of the anthracene fragment.

Abstract

Coordination complexes of bismuth bromide, iron(II) bromide, and zinc chloride with the aceanthrylene-o-iminoquinone (ANQ) ligand, 2-((2,6-diisopropylphenyl)imino)aceanthrylen-1(2H)-one, are synthesized. The compounds have the characteristic dimeric structure due to two bridging halogen atoms connected to the metals into the four-membered cycle. The DFT-calculated energy of the bridging bonds increases in the series Bi, Fe, and Zn. The metal–ANQ interaction energy is the highest in the case of Fe and lowest for Bi. The coordination complexes of the diimine derivative (N,N'-(aceanthrylene-1,2-diylidene)bis(2,6-diisopropylaniline)) and its 7- and 8-bromosubstituted derivatives with ZnCl2 are synthesized. The lowest acceptor effect of the coordination of ZnCl2 to the carbon and hydrogen atoms in positions 7 and 8 of the anthracene fragment is found.

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